Weller Soldering Tips : Your Guide to Easier Soldering

1

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SOLDERING TIPS

There’s no mystery about soldering; it’s
as easy as you make it. Follow a few
simple rules, and metal joins metal like
magic. This little book gives you the
rules in pictures—with as few words as
possible. All you need do is follow
through, step by step, and youll solder
sound joints.

1

DONT choose your
soldering loots? sol¬
der and flux hap¬
hazardly?

DO the right

equipment and ma¬
terials for the hind
of soldering you're
going to do.

All solders are not the same* The 3 grades
most generally used are 40-60, 50-50, and
60^0—the first figure in each grade refer¬
ring to the percentage of tin, and the sec¬
ond figure to the percentage of lead* The
40-60 and 50-50 are good general-purpose
Solders* The 60-40 is best For high speed
continuous soldering, and because it
flows freely at lower temperatures, is best
for the amateur solderer*

2

All fluxes are not the same. To find the
right flux for the particular fob you are
doing, refer to the simplified table below
and on next page. It shows at a glance
fust what flux you should use for a spe¬
cific kind of work.

Bos# Malarial 1 or

Applied Finis-h

Hot! it

Flux

Aniline-

phosphate

Flux

H ne¬
'e h- Inride
Flux

Hot tin dip

Yes

Yet

Yes

Hot solder dip

Yes

Yes

Yet

Electro tin 0.D005 1 '

Yes

Yet

Yes

Electro tin 0,0003"

1

Yes

Yet

Sliver plate

2

Yet

Yet

Cadmium plate

3

3

Ye*

Nickel plate

No

Fair

Yes

Galvanized ileel

No

No

A

Capper

4

Yet

Yei

Bret*

4

Yes

Yei

Phosphor-bronze

4

Yet

Yet

Beryl 11a m-copper

No

Folr

Yet

Aluminum-bronze

No

No

S

Silicon -brontfr

No

Yes

Yet

Zinc end ilp< plat*

No

No

*

Monel

No

Foir

Ye*

Nichrome

No

No

Yes

Steel

No

No

Yet

Sixain loss steel

No

No

7

Numerical references alwve arm siven on folfowinj pep*

3

|, Parts Finished with 0.0002 in, electro-tin
plate should he soldered within a short time,
Otherwise* difficulty may be encountered.
This thin coating can he preserved Lf treated
in hot palm oil or its equivalent,

2 . Electro-silver-plated parts are readily
soldered with rosin if the plated parts are
soldered within a reasonable length of time
after plating. Parts Carried in stock over long:
periods may corrode or tarnish sufficiently to
prevent rosin flux from being effective.

3. Cadmium plate over brass, bronze, or copper
solders well with rosin, aniline or zinc-
chloride fluxes. Cadmium plate over steel is
not readily soldered with rosin flux. However,
if the steel is given a pre-plate of copper be¬
fore cadmium plating, then rosin is a very
effective flux.

4. Copper, brass, and phosphor-bronze can he
soldered with rosin (lux if they are mechani¬
cally or chemically cleaned prior to soldering.
If these alloys have tarnished slightly, rosin
flux will not produce good soldering. Chemi¬
cally cleaned copper, brass, and phosphor-
bronze can be protected and preserved with
a "water-dip" lacquer coating, which does
not impair subsequent soldering,

5. Aluminum-bronze is not readily soldered
unless it has been specially cleaned. Kolcne
cleaning salts are effective.

6. ^ zinc-chloride flux containing free hydro¬
chloric acid should be used on zinc, zinc-
plated parts, or galvanized steeL

7* Stainless steel can be soldered with zinc-
chloride if it is chemically cleaned, but there
are proprietary stainless-steel fluxes, formu¬
lated for stainless steel, which are more
active than common zinc-chloride.

JFrdm on erikf* oppturing in SERVICE Magoiin*,

4

DON'T try to solder
metals which hare
not been cleaned,

DO remove grease,
paint, dirt, rust or
heavy oxides with
wire-brush, sand- 1
paper or chemical
cleaner *

Fluxes are used to remove oxide films
that are always present—also to prevent
additional oxidation during heating. BUT
flux is not a substitute for thorough clean¬
ing, Be safe; clean the metal before sol¬
dering., and. if you clean with acid be sure
to rinse thoroughly afterward.

DON'T add flux to
the tip of the iron
either before or dur *
ing heating.

DO apply flux only
to the part being $nl-
dered* Be especially
careful to keep it
away from threads
of any screw-type
iron.

Flux is often made a part of the solder-
in grooves or as a core. Or it may be In
the form of paste, liquid or powder for
separate application. Paste or liquid
fluxes are applied to the metal with a
brush or paddle. “Core” solders are best
for the average user.

Note; There are two commonly used
fluxes—Acid and Rosin. Acid flux is the
faster acting, but to prevent corrosion,
must be washed away after soldering.
Rosin flux is slower but milder in its
action, and can be used with safety in
soldering electrical connections or other
work where it is impossible to wash away
the residue. Acid! flux is preferred where
the parts can be cleaned after soldering.
BUT be sure to keep it away from insu¬
lated wire and similar materials.

6

DON'T try to solder
with a bare tip,

DO tin the tip at
the instant it is hot
enough to melt sob
der * // too hot 9 tip
will not tin —also
overheating will oxi¬
dise tip and make
retinning and re¬
dressing necessary.

Weller Soldering Guns save rationing
time. The tip heats only when gun is in
use f so there’s no danger of its overheat¬
ing and oxidizing while idle.

DON'T try to snider
joints unless they
have been pre¬
tinned.

DO pre-tin by
spreading solder
aver joints and sur¬
faces with the hot
tip, W ork the solder
into the surface with
a rubbing motion. Repeated heating
and rubbing i$ necessary to pre-tin
correctly ,

The Weller Soldering Gun makes pre-
tiniung easy. It delivers an even flow of
. heat, and the tip is ideal for spreading
the solder.

DON'T fry to solder
by applying heat to
the solder itself,

DO apply heat to
the surface or joint
until it becomes hot
enough to melt the
solder. The solder
should flow onto the
metal and into the
joint*

The Weller Gun gives you faster solder¬
ing, Five-second heating saves waiting ,,
time, and dual heat provides additional
capacity for heavier soldering jobs,

DON'T try to solder
by pressure with a
dry tip-

DO have a heavy
film of solder be¬
tween the working
face of the tip and
the joint to be sol¬
dered- This conducts
heat from the tip to
the work-

Soldering with a Weller Gun is simplic¬
ity itself, Even heat of just the right
temperature flows solder into joints like
magic. The Wellertip is easily re-tinned,
And the comfortable pistol grip makes
the gun easy to hold.

9

DON'T try to solder
a vertical surface by
applying solder with
the tip of the iron.

DO apply solder to
the trough formed
by the lip and the
surface to be sol¬
dered — press

tip against the sur-

Easily formed to meet job needs, the
guns Welleitip simplifies vertical sol¬
dering. Rend it to exactly the shape
that suits you* Its ideal for getting into
corners and around difficult angles.

DON'T try to solder
wire joints and aim-
ilar work by holding
the soldering tool
above the work•

DO hold the tip
under the wire joint
end solder above it f
so that tip supports
solder until it be -
comes hot enough to
flow into joint *

Here again the Weller Soldering Gun
simplifies your work. The built-in trans¬
former produces even current almost
instantly, and the versatile Wellertip
transmits heat just where and when you
want it*

DON'T delay in sol*
dering electrical con*
nectionSf or you may
bum insulation or
contacts*

DO complete the sol¬
dering ns quickly as
possible,

11

In electrical soldering, your Weller Gun
will prove especially valuable. Unlike
the cumbersome tips on ordinary solder¬
ing irons, the Wellertip is adaptable,
readily formed to suit conditions* It goes
easily into ''inaccessible” spots to speed
and simplify soldering, The long-reach
facilitates soldering in deep chassis wir¬
ing, And Sol derl ite — pre-focused spot-
light —lets you see into dark comers.

DON'T use too much
solder* it 7 # wasteful
and unnecessary,

DO use just enough
to do the job, Swr-
plus may be removed
with lip of gun or
with file.

A Weller Soldering Gun is your best pro¬
tection against wasting solder. Because

12

it melts and flows solder evenly, and t
because it carries the right uniform heat 1
to the exact spot desired* your soldered
joint is smooth, even and strong* And if
necessary, the Wellertip makes it easy
to remove excess solder*

DON'T let the Holder
do all the work if it
in possible to sup¬
port the joint by me-
chanical means*

DO loop a few turns
of the wire around
terminal 6e/are sob
dering* The joint
will be stronger f
longer-lasting.

DON'T lift the tip
from the soldered
surf are. Solder will
follow it,

DO glide the tip from
your work. This
f,fives an even sol¬
dered surface*

DON 'T more work
after soldering until
solder has hardened
completely.

DO give your solder
time to “freeze.”
The slightest more*
ment before solder
has hardened will
damage your work.
Freezing time , of
course f will vary de¬
pending upon fin
content of solder *

DON'T olio u: acid
flux to remain on
work after soldering
in completed.

DO remove at once
to avoid corrosion*

Remember that Rosin flux will not cause
corrosion and need not be removed! un¬
less flaking will be harmful, Acid flux
must be removed at once.

take CARE of your
SOLDER'**® tool

* DON'T use your sol¬
dering iron as a
hammer or can
opener*

DO remember that
it* a built to do a spe¬
cial job with preci «
sio n * The b fitter care
you take of *(, the
better it will serve
you-

DON'T pull or hang
your soldering tool
by its cord *

DO keep cord away
from sharp tools or
hot tips*

There’s much less danger of burning the
cord with a Weller Soldering Gun* When
you release the trigger the heat is OFF*

16

DO NT let your sol¬
dering tool rust out .

DO keep your solder¬
ing tip tinned at all
times- Flow solder
and flux over its sur¬
face occasionally,
and rub tip with steel
wool now and then
while soldering to
keep tip bright „

Wellertips are easy to keep tinned and
bright:; and they can be replaced easily
and inexpensivclv if pitted or damaged.

DON'T allow your
iron to remain idle
so that it overheats-

17

DO disconnect, iron
when not in use so
that flux won't bum
out und blacken cap*
per* Oxidation insu¬
lates the tip and the
iron will not solder
efficiently*

With a Weller Soldering Gun there's no
need to worry about disconnecting the
plug. Simply release the trigger and the
heat goes OFF! Thafs why genuine
Wet left ip s last so long.

DON'T permit oxida¬
tion to remain if
iron becomes over*
healed —omi DON'T
Hie fir ^e on if unless
tip is pilled*

DO clean the tcork¬
ing surface with steel
wool or light sand•
paper. Then retin
with solder t on nil
sides of the working
surface*

DON'T let the tip re¬
main pitted. Pining
reduce* soldering
effectiveness*

DO cere fully file
away the pitted sur*
face with a fine file t
removing no more
copper than is actu¬
ally necessary. Then ‘
retin .

With a Weller Guo,
of course, this is
unnecessary should pitting ever occur.
Wellertips can he quickly replaced at

low cost.

DO use genuine

WELLERTIPS for

speed and safety.
For Models WS-100
and WD-135 No,
7135 tip 7 and for
Models WS-200 and
WD-250 use No,
7250 tip—both have
chisel-shaped heads

RULE 7

No. 7135

WELLERTEP

No, 7250

for greater soldering surface and bet¬
ter heat transfer, plus vertical braced
construction ,

SPEEDS AND
SIMPLIFIES
SOLDERING

THE NEW WELLER,
SOLDERING
GUN WITH

The Weller Soldering Gun is the
handiest* most efficient soldering tool
ever devised—better from grip to tip.
Each Weller Gun is a complete, self-
contained unit with the transformer
built-in—not separate. And since the gun
heats only when the trigger is pulled,
there's no need to unplug when not
in use.

Time savers include 5-second heating to
save you time and power costs—Solder-
life to spotlight your work—Wellertip
and long reach to slide easily between
wiring and into difficult, deep comers.
For “hard-to-reach” jobs and regular
soldering, too, youll find the Weller
Soldering Gun a bandful of real solder¬
ing convenience.

20

FOUR EFFICIENT WELLER MODELS

i

WELLER ELECTRIC CORP., Easton, Pennsylvania, IKS, A.